How measuring cups are made - GIF

[jdurand]

My wife just handed me this bowl, we have a few that we use all the time. She's had them since she was a kid, so it's older than most people on this forum.

[meyer77]

That's it!

[Toolmaker51]

Those tough plastics result from products made for severe institutional use, such as prisons. Also found on military ships, for entirely different reasons; they clean easily and do not burn, emitting toxic fumes.
For many products, thermo-set is still superior to thermo-plastics.